Inside Macintosh: Apple Game Sprockets Guide /

Chapter 2 - DrawSprocket / DrawSprocket Reference

Constants

Pixel Scaling

Use these constants with the DSpContext_SetScale function to indicate how to perform pixel scaling.

enum DSpBufferScale {
   kDSpBufferScale_1       = 0x00000001U,
   kDSpBufferScale_2       = 0x00000002U,
   kDSpBufferScale_2Interpolate= 0x80000002U,
   kDSpBufferScale_3       = 0x00000003U,
   kDSpBufferScale_3Interpolate= 0x80000003U,
   kDSpBufferScale_4       = 0x00000004U,
   kDSpBufferScale_4Interpolate= 0x80000004U
};

typedef enum DSpBufferScale DSpBufferScale;

Constant descriptions

kDSpBufferScale_1

No pixel scaling.

kDSpBufferScale_2

Scale the back buffer by a factor of 2.

kDSpBufferScale_2Interpolate

Scale by a factor of 2 and interpolate when the image is drawn to the display.

kDSpBufferScale_3

Scale the back buffer by a factor of 3.

kDSpBufferScale_3Interpolate

Scale by a factor of 3 and interpolate when the image is drawn to the display.

kDSpBufferScale_4

Scale by a factor of 4.

kDSpBufferScale_4Interpolate

Scale by a factor of 4 and interpolate when the image is drawn to the display.